20311294930 has 32 divisors (see below), whose sum is σ = 37041608448. Its totient is φ = 8018088000.

The previous prime is 20311294909. The next prime is 20311294981. The reversal of 20311294930 is 3949211302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281779 + ... + 346441.

It is an arithmetic number, because the mean of its divisors is an integer number (1157550264).

Almost surely, 2^20311294930 is an apocalyptic number.

20311294930 is a deficient number, since it is larger than the sum of its proper divisors (16730313518).

20311294930 is a wasteful number, since it uses less digits than its factorization.

20311294930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65082.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 20311294930 in words is "twenty billion, three hundred eleven million, two hundred ninety-four thousand, nine hundred thirty".